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Which element has the lowest boiling point?
Quick Answer
Helium has the lowest boiling point of any element, at 4.22 K, or about -269 °C.
The Full Story
Helium has the lowest boiling point of any element, at 4.22 kelvin, which is about -268.9 °C. At standard pressure, it only becomes a liquid at extremely low temperatures, and it is famous for remaining liquid even near absolute zero. This makes helium essential in cryogenic research and for cooling superconducting instruments. Its weak atomic attractions are the reason it is so hard to liquefy.
Key Facts
1.Helium boiling point: 4.22 K
2.About -268.9 °C at 1 atmosphere
3.Element symbol: He
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"The element that only boils at temperatures near absolute zero"
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